Water heater



Sept. 1, 1931. A. r. JOHANSON WATER HEATER Filed Jan. 13, 1950 2 Sheets-Sheet .1

35 a/Zzz up? Sept. 1, 1931.

A. T.- JOHANSON WATER HEATER Filed Jan. 13, 1950 2 Sheets-Sheet 2 Patented Sept. 1,1931 1 I u ,U STATES PATENT OFFICE Application filed January 13, 1930. Serial No. 420,350.

-My invention pertains to Water-heaters ber or compartment 12, such plate constiand relates moreparticularlyto structures tuting the inner wall of a sheet-metal cabofthis character- Which may be inserted in inet having the top, bottom and side Walls or removed fromtheheating'apparatus oi 22, 23, 2-1 and a door 25 which may be 57a furnace, thus facilitating the'origina-l inopened When occasion requires.

7 stallation of such partofthe appliance and Such head comiector is internally divided rendering its removalor Withdrawal, when into upper, intermediate and lower chambers occasion requires, a matter of easy and 26, 27, 28, respectively, by curved, division rapidaccomplishment. walls or partitions 29 and 31. To enable those trained and skilled in this 'The lower chan'zber 28, by means of an on art to have a full and coinpletecompreelbow and a union 33, is connected to a hensi'on oi" the invention, both from struccold-Water admission-pipe common to all tural and performance standpoints, in the of the connectors located at the same level, accompanying drawings, forming a part of and, in comparable manner, the upper chamthis specification, I have illustrated a present, ber 26 is joined by an elbow 35 and a union 65 preferred embodiment of the invention as 36 to a hot-water discharge-pipe 37 simiapplied to an incinerator and, for simpliclarly connected to all theotner connectors ity, the same parts of the apparatus, of the same horizontal row. I tllIOLlgllOHt the several views, have been Chamber 28 is connected by a water-heatdesignatedby like reference numerals. ingtube 38 to a chamber of a round or Inthese drawings: cylindrical rear connector ll of the same ex- Figure 1 is a verticalsection through the ternal diameter as that of the reduced part heating apparatus and illustrates several of 17 of the companion connector 15, such memthe"water-heating units in place; ber 41 occupying a correspondinglyshaped Figure 2 is a vertical section through one hole 12 of substantially the same size in a of the units on an enlarged scale on line metal plate 13 located outside of and against 2 2 of Figure 4; v i the opposite brick or refractory wall n 01 Figure 3 1s a fragmentary front elevation the chamber 12, the plate 13 forming part of the pipe connections to the units; of a sheet-metal cabinet having a door 16.

- 30 Figure 4 is a vertical section on line 14 Gonnector a1 is divided into two chambers 'ofFigu're 2; and I 39 and 17 by an inclined Wall 18 as shown in Figure 5 is a similar section on line Figure of Figure 2. i I Chamber 39 of such rear connector is Referring tothe drawings, it will be noted joined to chamber 27 of the'head connector that the hot combustion gases of the in- 15 by a tube 4.9, and such latter chamber in 55 cinerator, characterized as a'whole 11, pass turn is united to chamber 17 of the rear upwardly. through the chamber 12 to the connector by a suitable tube 51.

flue '13 and that such chamber is trans Also, chamber 17 is in communication with versed by any appropriate number of the chamber 26 through a tube or pipe 52;

Water-heating units, each designated as a Thewater traversing the system flows whole as 14:. Q through the several connected elements in Each such unit comprises a round head thefollowing order-434, 83, 32, 28, 38, 39,,

connector 15 having a larger portion 16 and 19, 27, 51, 47, 52, 26, 85, 36, 37.

an adjacent part 17 of slightly less diam- In making this passage the Water flows v eter. I through the four tubes or pipes in series 1 The smaller section 17 of each such mem relation and is consequently subjected four ber 15 fits in a round hole of corresponding times to the hot products of combustion size in ametal plate 19 positioned against passing upwardly about the pipes.

the outer surface of one of the brick or re- The two end connectors and the intervenfractory walls 21 defining the internal chaming tubes or pipes constitute a single unitary structure and this may be installed in the repairs, or substitution of another heater, or.

to reduce the water-heating capacity of the structure, the unions 33 and 36 are unscrewed and the elbows 32 and removed. Y

Then the whole unit is pulled out forwardly through the aperture or opening 18, the packing breaking away as may be required to allow such removal. 7

The connector ell, during such withdrawal of the unit, can readily pass through th opening 18 because it is no larger in diameter than the latter.

When the unit is in place, its two ends are supported in very large measure, it not entirely, by the two metal'plates l9 and 43 on the margins of whose openings it rests andby which lb is borne.

Both end connectors of each unit are pro- 'vided with screw-threaded holes fitted with plugs 56, 56- in register with the plurality of tubes or pipes which afford access thereto for cleaning purposes;

I Obviously, as few or as many of the heating units may be employed as the particular installation denands and the number used may at any time be changed to meet ture'd in register, the combination ofa metalplate on the outer'i'ace of one of such walls and having an aperture therethrough 1n register w1th the corresponding wall aperture,

[a second metal-plate on the outer face of the other wall apertured in register with its aperture, a water-heating unlt consisting of a connector mounted in the aperture-of and supported in substantial measure by-said second plate, a' second connect-or mounted in the aperture of and supported 1n-- material measure by said first plate, said second connector having an external shoulder adapted to engage the outer face of the correlated plate, a plurality of tubes uniting said con nectors, means to admit water into and to permit its discharge from one of said conwith its aperture, a watereheating unit consisting o'fa connector mounted in the aperture of and supported 111 substantialmeasure by said second plate, a second connector mounted in the aperture of and supported in material measure by said first plate, a plurality of tubes uniting said connectors,

means to admit water into and to permit its discharge fromone of saidlconnectors, and packing in and filling the otherwise unoccupied space of said wall apertures,'saidunit being capable of Withdrawal as a unitary structure through said second plate aper ture. i p i 3. In a heaterihavinga passage for hot combustion gases between opposite walls with a registering cavityandaperture therein respectively, a water heating unit consisting of a-hollow connector divided into chambers by vpartition means in the cavity of one of said mus, ajsecond hollow connector divided ,into chambers by partition. means in the aperture through theop'posite wall, tubes crossing said ,passage and joining said connector chambers together, whereby a liquid may flow through such tubes in series, means-to admitwater to be heated to said unit, and means .to .deliver the heated water from said unit, said aperturejbeing of a size;to, permit withdrawal of said unit therebhrough as a unitary. structure.

In witness whereof'll have hereunto set myhand. I v

ADGLPH T.JOHA NSON. 

